Pyranose: Pyranose is hexagonal and has 5 carbons and 1 oxygen in its ring.
Furanose: Furanose is pentagonal and has 4 carbons and 1 oxygen in its ring.
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Pyranose: Pyranose is hexagonal and has 5 carbons and 1 oxygen in its ring.
Furanose: Furanose is pentagonal and has 4 carbons and 1 oxygen in its ring.